In American fertility clinics, 75 percent of couples are requesting girls and not boys.

In China, a lot of the opening up of private entrepreneurship is happening because women are starting businesses, small businesses, faster than men.

Fixing things around the house was the last bastion of manliness. But now, even that is getting taken away. As women become more economically independent, they are starting to fix things around the house for themselves.

We are still proprietary over the domestic realm even as we take over new professional realms, and that is a real problem.

People with a college education are now less likely to divorce than they were a few decades ago, and they're more likely to describe their marriages as happy. That finding really surprised me. It appears that those with a higher education have been more able to dismantle strict traditional roles and, in doing so, gain more freedom. I call it a seesaw marriage, one in which both the man and the woman take turns being the breadwinner, making it possible for each of them to experience career advancements or breaks at different times.

Although they are unfailingly gracious, evangelicals are not so good at respecting professional boundaries.

Men need marriage more than women do. In fact, they need it to survive.